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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Mutations::Branches::Create, feature_category: :api do
include GraphqlHelpers
let_it_be(:project) { create(:project, :public, :repository) }
let_it_be(:current_user) { create(:user) }
subject(:mutation) { described_class.new(object: nil, context: query_context, field: nil) }
describe '#resolve' do
subject { mutation.resolve(project_path: project.full_path, name: branch, ref: ref) }
let(:branch) { 'new_branch' }
let(:ref) { 'master' }
let(:mutated_branch) { subject[:branch] }
it 'raises an error if the resource is not accessible to the user' do
expect { subject }.to raise_error(Gitlab::Graphql::Errors::ResourceNotAvailable)
end
context 'when the user can create a branch' do
before do
project.add_developer(current_user)
allow_next_instance_of(::Branches::CreateService, project, current_user) do |create_service|
allow(create_service).to receive(:execute).with(branch, ref) { service_result }
end
end
context 'when service successfully creates a new branch' do
let(:service_result) { { status: :success, branch: double(name: branch) } }
it 'returns a new branch' do
expect(mutated_branch.name).to eq(branch)
expect(subject[:errors]).to be_empty
end
end
context 'when service fails to create a new branch' do
let(:service_result) { { status: :error, message: 'Branch already exists' } }
it { expect(mutated_branch).to be_nil }
it { expect(subject[:errors]).to eq(['Branch already exists']) }
end
end
end
end
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